reinforced concrete column of cross-section (300x300) mm2 supports an axial dead load PG =800 kN and an axial live load of PQ =700 kN. The column is supported on a reinforced concrete spread footing founded on soil having an allowable bearing capacity of qa = 100 kPa. It has been decided to use concrete for the footing having f’c = 32 MPa and that cross-sectional area of steel reinforcement to be used should satisfy pmin = (Ast/bd)min= 1.4/fsy, or greater as required for strength, with 30 mm concrete cover to reinforcement (N 20 bar). If the effects of any moments in the column and the self-weight of the column and the footing are to be ignored: Determine the footing total depth (D) (mm) (Hints: Use
reinforced concrete column of cross-section (300x300) mm2 supports an axial dead load PG =800 kN and an axial live load of PQ =700 kN. The column is supported on a reinforced concrete spread footing founded on soil having an allowable bearing capacity of qa = 100 kPa. It has been decided to use concrete for the footing having f’c = 32 MPa and that cross-sectional area of steel reinforcement to be used should satisfy pmin = (Ast/bd)min= 1.4/fsy, or greater as required for strength, with 30 mm concrete cover to reinforcement (N 20 bar). If the effects of any moments in the column and the self-weight of the column and the footing are to be ignored: Determine the footing total depth (D) (mm) (Hints: Use
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
Related questions
Question
100%
A reinforced concrete column of cross-section (300x300) mm2 supports an axial dead load PG =800 kN and an axial live load of PQ =700 kN. The column is supported on a reinforced concrete spread footing founded on soil having an allowable bearing capacity of qa = 100 kPa. It has been decided to use concrete for the footing having f’c = 32 MPa and that cross-sectional area of steel reinforcement to be used should satisfy pmin = (Ast/bd)min= 1.4/fsy, or greater as required for strength, with 30 mm concrete cover to reinforcement (N 20 bar).
If the effects of any moments in the column and the self-weight of the column and the footing are to be ignored:
Determine the footing total depth (D) (mm) (Hints: Use Shear to calculate the d. D=d+cover +N20/2)
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 3 steps with 2 images
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.Recommended textbooks for you
Structural Analysis (10th Edition)
Civil Engineering
ISBN:
9780134610672
Author:
Russell C. Hibbeler
Publisher:
PEARSON
Principles of Foundation Engineering (MindTap Cou…
Civil Engineering
ISBN:
9781337705028
Author:
Braja M. Das, Nagaratnam Sivakugan
Publisher:
Cengage Learning
Structural Analysis (10th Edition)
Civil Engineering
ISBN:
9780134610672
Author:
Russell C. Hibbeler
Publisher:
PEARSON
Principles of Foundation Engineering (MindTap Cou…
Civil Engineering
ISBN:
9781337705028
Author:
Braja M. Das, Nagaratnam Sivakugan
Publisher:
Cengage Learning
Fundamentals of Structural Analysis
Civil Engineering
ISBN:
9780073398006
Author:
Kenneth M. Leet Emeritus, Chia-Ming Uang, Joel Lanning
Publisher:
McGraw-Hill Education
Traffic and Highway Engineering
Civil Engineering
ISBN:
9781305156241
Author:
Garber, Nicholas J.
Publisher:
Cengage Learning